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for (Map.Entry<String, List<KafkaData>> entry : CollStreamUtil.groupByKey(kafkaDataList, KafkaData::getTopic).entrySet()) {
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for (Map.Entry<String, List<KafkaData>> entry : CollStreamUtil.groupByKey(kafkaDataList, KafkaData::getTopic).entrySet()) {
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Tidb.insert(entry.getValue(),entry.getKey());
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Tidb.insert(entry.getValue(),entry.getKey());
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